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Finding the Fourth Proportional to 516,697.30, 775,194.18 and 217,023.76

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Solution

The fourth proportional to 516,697.30, 775,194.18 and 217,023.76 is: 325,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,697.30 : 775,194.18 = 217,023.76 : x
  2. Step 2: Convert to fraction form
    516,697.30/775,194.18 = 217,023.76/x
  3. Step 3: Cross multiply
    516,697.30x = 775,194.18 × 217,023.76
  4. Step 4: Simplify right side
    516,697.30x = 168,235,555,673.72
  5. Step 5: Solve for x
    x = 168,235,555,673.72/516,697.30
  6. Step 6: Final answer
    x = 325,597.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.